This multipurpose lockable enclosure is available to protect a wide range of larger size devices, components and sensitive equipment, such as keypads, annunciators, volume controls and lighting controls that require physical or environmental protection. The STI-7510D guards sensitive devices from vandalism, accidental damage as well as damage caused from exposure to the elements. Spacer, integrated hinge and cover are formed from super tough polycarbonate material. The polycarbonate cover is backed by a lifetime guarantee against breakage in normal use. Cover has exterior key lock and open backbox for exposed conduit, surface mount applications.